Spring-motor governor



G T. CHERINGTON.

SPRING MOTOR GOVERNOR.

APPLICATION FILED JULY 13, I917- Patented Dec; 21, 1920.

Hui 1W Nil GEORGE TL CI-IERINGTON, 0F WA'UKEGAN, ILLINOIS.

' v SPRING-MOTOR GOVERNOR.

Specification of Letters Fatent.

Patented Dec. 21, 12320.

Application filed July 13, 1917. Serial No. 180,289.

To all u: 7mm a may concern Be it known that I, GEORGE T. Guanine TON, a citizen of the United States, residing at lVaukegan, in the county of Lake and State of Illinois, have invented a certain new and useful Improvement in Spring- Motor Governors, of which the following is a specification.

My invention relates to that class of devices such as are described in my copending application Serial No. 104,827,1iled June 17, 1916, and which describes a device designed for use in connection with phonographs or pianos. I

My invention has for its object to provide a simpler and rather inexpensive form of construction for the governing device than that shown in the said application.

My improvement, as hereinafter described is especially adapted for use either with the cheaper forms of phonographs or in those devices where the mufliing of the governor is not essential to the successful operation of the device in which the governor is employed.

My means of accomplishing the foregoing objects may be more readily understood by having reference to the accompanylng drawings, which are hereunto annexed and are a part of this specification, in whichz l Figure 1 is a side elevation in section of my improvement.

Fig. 2 is a top'or plan vlew of the same.

Fig. 3 shows a modified form of my improvement.

Similar reference numerals refer to s milar parts throughout the entire description.

As shown in the drawings, the governor is of the usual ball type, and is mounted upon a revolving shaft 4, and consists essentially of a plurality of flat springs 5, 6, and 7. Although the drawings show three of these springs, it will be apparent to persons familiar with the art that two or more can be employed as desired.

One end of each of the springs is attached to a collar 9, which is fixed upon the shaft 4, by means of a set screw 10, although any other suitable or convenient form of fastening may be employed. The ends of the springs 5, 6, and 7, may be secured to the collar 9, in any desirable manner.

As shown in the drawings, they are attached by means of screws 11, 12 and 13. The other ends 14, of the springs 5, 6, and 7, are mounted upon one end 17 of a sleeve 18,

which is mounted and slidable upon the shaft 4. The end 19, of this sleeve 18, is provided with a disk This disk is provided with a plurality of openings 20, 21, and 22, through which the springs 5, 6, and 7, pass. Secured to the center of the springs 5, (i, and 7,,are weights 23, 24, and 25, which are secured to the spring in any desired manner. is shown in the drawings, screws are employed for this purpose. The openlugs 20, 21, and 22, are of sufficient size for the weights to be located therein without their contacting with the edges of the open ings.

The operation of the device is as follows:

When the shaft 4, is revolved at the normal and predetermined rate of speed, the springs and weights will not be effected, but in the event that the shaft should be revolved at a greater rate of speed than that of normal, then the centrifugal efiect will cause the weights to move outwardly, carrymg with them the springs 5, 6, and 7, and if the speed continues to be excessive, the weights will be brought in contact with the edges 30, of the openings 20, 21 and 22, which will prevent any further movement, and as all further centrifugal effect will be recessed by the disk, it is apparent that the weights cannot move any farther away from the shaft, and consequently the breaking of the springs will be avoided.

In Fig. 3, I have shown a modified form of constructionfor my device, in which in the place of a disk, I employ a Wire 34, which is secured to the sleeve in any suitable or convenient manner, and which is provided with a plurality of loops in number corresponding to the number of weights and springs, so that the outer movement of the weights due to the increased speed of the shaft will be recessed by the outer portion 32 of the loops, formed of the wire. It will be apparent that this construction does not deviate from the spirit of my invention, and I do not desire to be limited to the specific forms shown herein, except as such limitations shall appear in the hereinafter appended claims.

Having described my invention what I regard as new and desire to secure by Letters Patent is:

1. A governor for spring motors com ris ing the combination with a revolving s aft,

a cylindrical sleeve slidably mounted on said s shaft, a shoulder formed on said sleeve and a radially extending disk formed on one end of said sleeve, a collar fixedly mounted on said shaft, a plurality of flat springs the ends f which are secured to said shaft and collar respectively, a weight attached to the central portion of each of said springs, said weights being mounted in spaced relation Within openings formed in said disk.

2. In a device of the character described, the combination with a revolving shaft of a centrifugal ball governor mounted thereon, a disk carried by said shaft, said disk bein in a plane passing through the center of the balls, there being openings'in said disk through which the flexible arms of the governor pass, for the purpose set forth substantially as described.

' A device of the character described comprising the combination with a motor of a shaft, a disk having a plurallty of openings therein mounted thereon, a sleeve slldably mounted on said shaft and connected to said disk, a collar fixedly mounted upon said shaft, a plurality of flat springs secured to the said collar and the end of the slidable sleeve, a weight secured to the central portion of each of said springs, said weightsbeing located within said; openings but normally in spaced relation thereto.

4c. A device of the character described the combination with a revolving shaft, of a collar fixedly mounted thereon, a sleeve slidably mounted on said shaft, flexible means to connect the collar to one end of the sleeve, a plurality of weights mounted on said means, a plurality of straps extending outwardly from said sleeve, means carried by said straps which encircle the sides and outer portion of said Weights.

In testimony whereof I have signed the foregoing specification.

. GEORGE T. CHERINGTON. 

